Home / 19,509.12-26,926.56-13,223.52

Finding the Fourth Proportional to 19,509.12, 26,926.56 and 13,223.52

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Solution

The fourth proportional to 19,509.12, 26,926.56 and 13,223.52 is: 18,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,509.12 : 26,926.56 = 13,223.52 : x
  2. Step 2: Convert to fraction form
    19,509.12/26,926.56 = 13,223.52/x
  3. Step 3: Cross multiply
    19,509.12x = 26,926.56 × 13,223.52
  4. Step 4: Simplify right side
    19,509.12x = 356,063,904.69
  5. Step 5: Solve for x
    x = 356,063,904.69/19,509.12
  6. Step 6: Final answer
    x = 18,251.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.